Spacing and dividing instrument.



NO. 819926. PATENTBD MAY s, 1906 A. ROBBINS.

SPAOING AND DIVIDING INSTRUMENT.

APPLICATION FILED A1R.26,1905.

ROBBINS, OF KALAD/ AZOCz 1G HIGA N.

Specification of Letters Patent.

Bettsnted may 8, 1906.

Application filed April 26, 1905, Serial En. 5357:

useful l nplovements in Spacing Instruments, of Wii ohthe following is a specification.

Ti is ii lvsntion relates to improvements in spacing mstrui'nsnts.

The oojeets this invention are, first, to ids an improved spacing;- insti'umsnt wot to use and which 3* mm ass-fly adjusted second, improved spacing instrument of "it inexpensive, and dulsbie construc- 3. '7 k A .1011 10.: uin-in and aooumtsiy dlvldmg any given some or ins.

Further objects and objects risting to structural details will clearly appear fiom h detailed description to follow.

4 the objects of my invention I sccompiish by the devices and means described in the foiio'wing specification.

T ieariy defined. "and point lle invention Pu ut in the claims.

' 'uotui'e embodying the features of 1? ntion is clearly illustrated tho acpant" 1g drawings, forming it part of this 1w} 'oi1- s :1 View of my improved Fig" is a side sieve,- a detail sovtional View 1e 4 4 of Fig. i

' 10 markers. 'n sn on line 5 5 \Iil-i. detsiis :imi View; taivv the sec tion-lines, and s refer to Sinlllfil' w the (Li's-wings it will be noted ompioysd the 1sz3'-tongs prim construction my improved i 11mm. It is made up of a p1ul'fl-iit of oars of equal length arranged 011 1 prinoipie. The and oars A length of tho bars A. Tie r and of the frame are pret 1, that additions 3119.2 be

and eye's-alts B, the eyoiiolts being arrange-('1 on the and ours of the frame A rod is arranged through tie syobolts B and is secured therein by set-screws Z By means of the rod 3 tho frame is secured in its szd-- justsd position. 231861112 75 the bars on one side are pivoted togsthci' oy o of the usualtornm (See 1 .53;; 5.) The posits ends the bars are voted together rivets 0/ 6 5 (See Fig. 4.) J hose rivets a" are providsu mm Those marker extensions Q- V v mumsr extension are out sperms therooi' so am in the drawings. This 8OZIStIUGt10IL the rivets and thsi lnztliiii stats] 1' points to be accurately machined so tv points are accurately casters-2d.

The fi'mnewoik of my improved spy :ing instrument may be lengthsned by adding thereto a framework of similar form of con: struction. Screw-bolts a are providsd for this purpose. (See Fig. Y

The markers or poin ts o, sponding ends of 821-01101 he hairs A, oolinesr of tho distance between the same i and can be varied ism-expands" oi. closing the fiaunework. T i

Those znarsurs are zui's-izgezi in very convi'gnient form, so thst otter itfijusting the same as desii'sd mail marker Y sy 5 be StIUQi Lt slight blow with St hsmmor, 11? (is sired.

Joe ti mot-L's oi: ass nooiy. My improved spacing instrmnsnt stated, is oi-yquis v2.3 oonvsiiient to use.

Having thus dssmibsd 11;. y i'iwontion,

v. illid vi onus OI contiguous y along one side of the frame, having their pair of eyebolts arranged as pivots in said I 3. In a spacing instrument, the combinalower part cone-shaped and pointed; eyebolts I tion of a lazytongs frame, composed of at the mid-points of the pairs of bars at each 1 end of the frame; a rod arranged through sing-points otlsaid bars, having their lower said eyebolts; and set-screws arranged part eoneeshaped and pomte to serve as through said eyeboits for seourmg said rod in markers and means for ioekmg sald frame position therein, for-the purpose specified. in its adjusted positions, for the purpose -2. A spacing instrument consisting of a specified. 1azy-tongs frame, composed of a plurality I11 Witness whereof I have v hereunto set of bars; pointed rivets therefor, said pointed my hand and seal in the presenoe of two Witrivets being adapted to serve as markers; a nesses. h ame; a rod arranged through said eyebolts ALEXANDER QB j 1 and set-screws carried by the said eyeoolts 1 ii201;i securing said rod, 3501; the purpose speeie v I Witnesses".

W. C. MARoEsoN, ETHZEL A. TELLEE.

plurality of bars; rivets for one series of cross-; 

